Shuttle-threading mechanism for automatic filling-replenishing looms.



H. YUUNGQUIST. SHUTTLE THREADTNG MECHANISM FOR AUTOMATIC FILLING REPLENTSHING LOOMS.

APPLICATION TILED MAY I2 1916.

Fig.1.

Patented Feb. 6, 1917.

2 SHEETSSHEET Henry Youngq uisT byfiew/ ATW :3.

H. YOUNGQUIST.

SHUTTLE THREADING MECHANISM FOR AUTOMATIC FILLING REPLENISHING LOOMS.

APPLICATION FILED MAY 12, 1916.

LQM 68. Patented Feb. 6,1917.

2 SHEETS-SHEET 2.

Fig.3. 5

i i ,L 17'? VJ av 22 5 I F g4 42 42 39 Fig 5 mm m \nven'for. Henry You ngq uisY by fma/ WQZZYWWJ earns earner enrich.

IHIENIJRY YOUNGQUIST, 0F MANCHESTER, NEW HAMPSHIRE, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 DRAPER'CORPORATION,'0F HUPEDALE, MASSACHUSETTS, A

CORPORATION OF MAINE.

SHUTTLE-THREADING MECHANISM FOR AUTOMATIC FILLING-REPIJENISHING LOOMS.

To all whom it may concern:

Be it known that I, HENRY Yonncoursr,

a citizen of'the United States, residing at Manchester, county of Hillsborough, State of New Hampshire, have invented an Tm-.

ished filling carrier and supplying the shut-- tie With a fresh filling carrier. Tn looms of this type the'shuttle is of the self-threading type, that is, a threading slot connects the re cess for the filling carrier with the delivery eye, and in the operation of the loom upon the replenishment of the shuttle with afresh filling carrier the fresh filling is carried through the threading slot into the delivery eye, thus threading the'shuttle. The threading slot is also provided with some retaining device which when passed by the filling in its passage into the threading slot-prevents the withdrawal of the filling from the threading slot and induces the subsequent passage of the filling out through the delivery eye. "When the shuttle is picked from the replenishing side of the loom, the end of the fresh filling is held by the hopper containing thesup'ply of fresh filling carriers,

and as the shuttle travels to the opposite side of the loom the filling passes into the threading slot and beneath.the retaining means. Upon the return pick' to the replenishing side of the loomthe thread is drawn out through the delivery eye and the shuttle is then completely threaded. If the filling is not in the proper position on the pick away from the replenishing sideof the loom the return-pick cannot affect the threading of the shuttle, and occasionally for other reasons the filling will fail to pass out through the delivery eye upon the return pick. lln any such case a mis-thread takes placefre- Speeification of Letters Patent. Application filed May 12,

Patented Feb. s, new.

1916. Serial No. 97,197.

sulting in breakage, a further replenishing operation, loss of picks, the necessity for arresting the take-up and letting back to prevent thin places in the cloth.

The object of the presentinvention is to' provide an automatic filling replenishing loom with a means for positively insuring the threading of the shuttleupon replenishment. This object in the preferred form is secured by a means acting upon transfer .to

seize the filling on both sides of the shuttle threading slot and positively to force the filling into threading position so that upon the return pick of the shuttle the filling necessarily passes out through the delivery eye. The invention also comprises means operating between the seizing means and the point of attachment of the fresh filling to the hopper to catch and elevate the filling, thus insuring its proper alinement with the running shuttle, and placing such tension upon the filling as to insure the action of the seizing means. The invention also comprises means by which when the seizing means ,is functioning in the shuttle it will partake of any beat-up 'movement of the shuttle. p

The nature and objects of the invention in these and other particulars will more fully appear from the accompanying description and drawings and will be particularly point form of mechanism embodying this invention embodied therein, the hopper carrying the supply of fresh filling carriers being shown partially in dotted lines in order not to obscure the mechanism; Fig.2 is a side elevation partially broken away of the parts shown in Fig. 1

Fig. 3 is a front elevation of the end of the boxed shuttle with the portions of the Fig. 5 is a view in side elevation of the filling seizing means with its rock arm shown in vertical cross section;

Fig.6 is a rear elevation partially in vertical cross section of a detail to illustrate the means for operating the filling seizing device.

The general construction and operation of an automatic filling replenishing loom of the Northrop type such as is herein illustrated in connection with the present invention is well known and familiai' to those skilled in the art and needs no detailed consideration. Such a 100m comprises the frame 1, the breast beam 2, the lay 3 movable toward and from the breast beam, the shuttle box 4 on the lay into which the shuttle ,5 is picked from the opposite side of the loom and out of which it is picked by the picker 6. The supply of'fresh filling carriers 7 is maintained in a hopper shown as of the rotary type and comprising a hopper stand 8 secured to the breast beam and presenting two disks one of which, 9, is provided with seats. 10 for the butts of the fillp over which the supports carriers and the other of which, 11, the tips of the filling carriers. This hopper also comprises an outer disk 12 filling 13 from each filling carrier extends and is then secured to the ing holding stud 14 on the outer end of the hoper axis. In order to effect a transfer of a fresh filling carrier from the hopper to the shuttle, transferring means are provided,

and in this type of loom this means comprises a transferrer 15 pivotally mounted upon a stud 16 extending out horizontally from the hopper stand. The transferrer 15 is adapted at its outer end to engage the butt of the filling carrier in the hopper and is provided with a lateral extension 16 carrying a device 17 adapted to engage the tip of the filling carrier. The transferrer also posite the dog and mounted upon the lay is thehunter 20. A helical spring 21 connected to the stud 36 and the transferrer 15 normallyacts to maintain the transferrer elevated. Upon the call for filling replenishment the dog 19 is elevated into the path of the hunter 20 and as the lay beats up the shuttle containing the filling carrier to be ejected is boxed at the replenishing side of the loom and is brought by the lay beneath the hopper; thereupon owing to the contact of the hunter 20 with the dog 19 the transferrer is swung downwardly about the stud ,lar kind of shuttle eye.

depending arm 18 carrying piv-, otally mounted thereon a dog 19 while opfurther particularity.

enses 16 to engage the fresh filling carrier therebeneath in the hopper and transfer it into the shuttle thereby at the same time ejecting the deplenished or exhausted filling carrier from the shuttle.

The shuttle 5 which is of the self-threading type is illustrated in Figs. 1, 3 and 4. There are many types of self-threadingshuttles, but it is only necessary to illustrate one form, and it invention is not to be limited to any particular form of self-threading shuttle. In these shuttles the filling carrier 7 is supported in the recess 21 open at the top and bottom of the shuttle. The delivery eye-22 isto be understood that the extends inwardly and transversely from the eye 22, and this slot may be of various shapes and configurations according to the particu- 7 As the filling 13 draws off from the tip of the filling carrier.

inthe shuttle upon the pick of the shuttle away from the replenishing side of the loom, it is supposed to be carried down into the threading slot 23 and then upon the reverse pick to be passed out through the delivery eye 22 thus threading the shuttle. In order that the filling may be retained in the threading slot' and be guided out through the delivery eye upon the reverse pick, it is customary to provide some form of retaining means in connection with the threading slot so that when this retaining means is passed by the filling in its passage into the threading slot this retaining means will prevent the withdrawal of the filling from the threading slot and insure subsequent cannot thenby reason of the beak project-i ing into the reentrant portion 26 of the opposite wall pass upwardly out; from the threading.slot,fand hence is retainedtherein. The shuttle may also be provided as herein shown with additional retaining means such as the finger 27 forming at its free end in connection with the tip 28 of the plate 24 a tortuous passage for the filling, but as the particular form of the retaining means is not involvedin this; invention it is unnecessary to describe it with In order to support 0 the filling carrier 1ts passage from the hopper to the shuttle tare-see on the lay a yielding tip support is usually provided- This is shown as comprising a rearwardly projecting 'arm 29 rigidly mounted on the stud 16 and having yieldingly and pivotally mounted in its end the tip support id) which extends beneath the tip of .the fill ng carrier in the hopper to-be transferred. Upon the operation of the transferrer the tip of the filling carrier rests pon this tip support 30 and the tip support. yields as transfer takes'place.

The mechanism thusjfarldescribed is well known and familiar and is herein illustratedas disclosing one form of an automatic fill- .ing replenishing loom in connection with of the loom and the filling is drawn into the threading slot 23 and should pass be-- neath the retaining means .in the threading slot so that as the shuttle starts upon its return pick the filling will be drawn out through the delivery eye. But this designed threading of the shuttle does not always take place for various reasons and with the consequent evil results already noted. The present invention secures upon transfer tak ing place the positive forcing of they filling into threading position so that upon the return pick of the shuttle it-will pass out from the delivery eye. This result as illustrated is secured at the time of transfer by causing the filling to be forced beneath the retaining means in the threading slot. In the preferred form of the invention illustrated the filling is seized on b0 11, sides of the threading slot and positiv y forced down into the threading slot beneath the retaining means, and preferably, at the same time, means are provided operating between the threading slot and the point of attachment of the filling to the hopper'to catch and elevate the filling, thus insuring the action of the thread seizing means, insuring the. proper alinement of the filling with. the shuttle, and placing a required degree. of tension upon the filling.

In the preferred form-of the invention illustrated as one means of securing the de-.

sired result the filling seizing device is pivotally mounted adjacent the transferrer and is connected thereto to be rocked thereby while the filling catching device is pivotally mounted adjacent the fillingseizing device, and in turn connected thereto and rocked thereby, but in the reverse direction. As shown a bearing hub 31 is located adjacent the transferrer and for convenience is shown as formed as a part. of the arm 29 of'the filling carrier tip support; This hub carries a transverse shaft 32. An operating arm 33 is rigidly secured to the left hand end of the shaft 32 and at its rearward end is bent laterally to ride in a slotted projection 34' "extending forwardly from the tip engaging" It will thus portion '17 of the transferrer: be seen that the rocking movement of the transferrer is thus transmitted to the shaft 32. At its right'hand end the shaft 32 has rigidly-secured thereto a hub 35 provided wlth a rearwardly projecting arm 36. A

rearwardly projecting rock arm 37 is pivotally mounted on the shaft 32 and yieldingly held in engagement with the pro ecting arm 36 by a helical spring 38 engaging at one end the rigid arm 29, and at its other end the rock arm 37. Thus the rock arm 37 'rocks with the shaft 32 but is free to yield upwardly spring 38. The rock arm 37 carries the filling seizing device proper which is shown as a rod-39 against the tension .of the slidingly mounted at its forward end there- III. A set screw 40 abuts a slabbed off portion of the rod 39 thus preventingtwisting movement and limiting outward movement thereof while a spring 41 seated in the rock arm 37 acts normally to project the rod 39 rearwardly. At its rearward end'the rod 39 .is threaded and provided with a pair of lock nuts 42 between which is clamped the yokeshaped device 43, the loop 44 therein provlding for vertical and rotary adjustment with respect to the rod. The depending arms of this yoke-shaped device areeach transverselyfforked at their'lower ends to engage and seize the filling. At the proper distance forwardly from the-yoke-shaped .device the rod 39 is provided with a depending lug 45 so positioned as to project into the path of the shuttle-box when the seizing .device is holding the filling in the shuttle,

and thus cause the rod 39 with the seizing device toslidc in the rock arm 37 and partithe of any beat-up movement of the shutt e.

In the construction illustrated the disk 11 of the hopper extends somewhat over the threading slot when the shuttle is boxed ready for replenishment, and as the filling seizing device moves. upwardly pastthe periphery of this disk it is necessary that the filling seizing device should have a lateralmovement to enable it as it passes beneath the disk to move into proper position to straddle the entire threading slot and enable its two depending arms to pass down into the shuttle. B reason of this particular contruction of loom illustrated it is necessary therefore to provide means for giving this lateral movement of the filling seizing device. This is secured by providing the rocked it will be'given hub 46 of the arm 33 with a cam face 4:7 and the bracket 31 with a cotiperating cam face 48 and inserting between the opposite end of the bearing 31 and the hub of the rock arm 37 on the shaft 32 a helical spring 49. Thus as the filling seizing device is a movement around under the disk 11 and back up the side of the disk. p

Inthe preferred form of construction illustrated the means for catching and elevating the 'filling'between the seizing means and the point of attachment of the filling to the hopperisfor convenience supported by the stud 16 an'doperated from the rock T arm 37; For this purpose the stud 16 is .ply of fresh Up on the return prolonged'and providedwith and carries fixedly mounted thereon the rearwardly projecting bracket arm 50. A fillin catching.

and elevating lever 51 is pivote at 52 on the" rearward end of the bracket arm 50 and is bent laterally to form an operating arm extending into a 37 The rear end 55 of the lever 51'is hook shaped; The parts are so constructed and positioned that when the filling seizing device moves downwardly into engagement with the filling carrying it into the shuttle, the hooked end of the filling catching device comes beneath the filling and elevates it into substantial alinement with the axis of the shuttle. Thus not only is the filling properly alined but tension is placed upon the filling so'as to maintain it under the control of the filling seizing means and insure its. being properly and accurately positioned in the threading slot of the shuttle. of the filling seizing means upwardly to normal position the filling catching device returns downwardly to its normal position.

Having fullydescribed my invention, what I claim as new and desire to secure by Letters Patent is: v

1. An automatic filling replenishing loom comprising a hopper provided with a supply of fresh filling carriers, a shuttle having an eye and a threading slot leading into the eye, means operated upon failure or exhaustion of the running filling to transfer a fresh filling carrier from the hopper into the shuttle, and means acting upon transfor to seize the filling; on both sides of the shuttle threading slot and positively to force the filling into threading position.

2. An automaticfilling replenishing loom comprising a hopper provided with a supfilling carriers; a shuttle having an eye, a threading slot leading into the eye, and passed by the filling in its passage into the threading slot prevents the withdrawal of the filling from the threading slot and induces its passage out through the eye; means operated upon failure or exhaustion of the past slot 54 in the rock arm retaining means which when running filling to transfer a fresh filling carmeans acting ing on both sides 'of the said retaining means and positively to force the filling there into threading position.

3. An automatic filling replenishing loom comprising a hopper provided with a supply of fresh filling carriers, a shuttle having an eye and a threading slot leading into the eye, means operated upon failure or exhaustion of the running filling to transfer a fresh filling'carrier from the hopperinto the shuttle; andmeans acting upon transfer to seize the filling, enter the shuttle at bothsides of the threading slot and positively force the filling down into said slot and into threading position. 9

ltAn automatic filling replenishing loom comprising a hopper provided with a supply qf fresh filling carriers; a shuttle having an 'eye, a threading slot leading intothe eye, and retaining means which when passed by the filling in its passage into the threading slot prevents the withdrawal of the filling from the threading slot and induces its passage, out through the eye; means operated upon failure or exhaustion of the running filling to transfer a fresh filling carrier from the hopperinto the shuttle; means acting upon transfer to seize the filling on both sides of the said retaining means, enter the shuttle on both sides of the retaining means, and positively force the filling down past the said retaining means into threading position in the slot.

5. An automatic filling replenishing loom comprising a hopper provided with a supply of fresh filling carriers, .a shuttle having an eye and a threading slot leading into the eye, means operated upon failure or exhaustion of the running filling to transfer a fresh filling carrier from the hopper into the shuttle, means acting upon transfer to seize the'filling on both sides of the shuttle. threading slot and positively to force the filling into threading position, and means acting upon the said movement of the seizing means simultaneously to catch and elevate the filling between the seizing means and its point of attachment to the hopper.

6. An automatic filling replenishing loom comprising a hopper provided with a supply of fresh filling carriers; a shuttle having an eye, the eye, and retaining means which when, passed by the filling in its passage into the threading slot prevents the withdrawal of the filling from the threading slot and in-. duces its passage out through the eye; means operated upon failure or exhaustion of the running filling to transfer a fresh filling carrier from the hopper into the shuttle; means acting upon transfer to seize the filling on both sidesof the said retainnarrates ing means and positively to force the filling therepast into threading position, and

-means acting upon the said movement of .haustionof the running filling to transfer a fresh filling carrier from the hopper into the shuttle; means acting upon transfer'to seize the filling, enter the shuttle at both sides ofthethreading slot and positively force'the filling down into said slot and into threading position, and means acting upon the said movement of the seizing means simultaneously to catch and elevate the filling between the seizing means and its point of attachment to the hopper.

8. An automatic filling replenishing loom comprising a hopper provided with a supply of fresh filling carriers; a shuttle having 'an eye, a threading slot leading into the eye, and retaining means which when passed bythe filling in its passage into the threading slot prevents the withdrawal of the filling from theithreading slot and induces its passage out through the eye; means operated upon failure or exhaustion o 'the running filling to transfer a fresh filling carrier from the hopper into the shuttle; seize the filling on both sides of the said retaining means, enter the shuttle on both sides of the retaining means, force the filling down past the said retaining means into threading position in the slot, and means acting upon the said movement of the seizing meansssimultaneouslyto catch and elevate the filling between the seizing means and its point of attachment to the hopper.

9. An automatic filling replenishing loom comprising a hopper provided with a supply of fresh filling carriers, a shuttle having an eye and a threading slot leading into the eye, a pivotally mounted transferrer acting when 'rocked downwardly to transfer a fresh filling carrier from the hopper into the shuttle, a rock arm mounted adjacent the transferrer and connected thereto to be rocked thereby, and a filling seizing device carried by said rock arm and acting when rocked downwardly to seize the filling on both sides of the shuttle threading slot and positively to force the filling into threading position. p

10. An automatic filling replenishing loom comprising a'hopper provided with a supply of fresh filling carriers, a shuttle having an eye and a threading slert leading into mounted adjacent said means acting upontransfer to and positively the eye, a pivotally mounted transferrer acting when rocked downwardly to transfer a fresh filling carrier from the hopper into the shuttle, a'rock arm mounted adjacent the transferrer and connected thereto to be rocked thereby, a filling seizing device carried by said rock arm andacting when rocked downwardly to seize the filling on both sides of the shuttle threading slot and positively to force the filling into threading position, and means acting upon the down- Ward movement of the filling seizing device simultaneously to catch and elevate the filling between the seizin device and the polnt of attachment of the fi ling to the hopper.

11. An automatic filling replenishing loom comprising a hopper provided with a supply of fresh fillingcarriers, a shuttle hava ing an eye and a threading slot leading into the eye, a pivotally mounted transferrer acting when rocked downwardly to transfer a fresh filling carrier from the hopper into the shuttle, a rock arm mounted adjacent the transferrer and connected thereto to be rocked thereby, a filling seizing device carvried by said rock arm and acting when rocked downwardly to seize the filling on both sides of the shuttle threading slot and positively to force the filling into threading position, and a filling catcher pivotally filling seizing device and connected therewith and rocked in reverse direction thereby to catch and-elevate the filling between the seizing device and the point of attachment of the filling to the hopper.

12. An automatic filling replenishing loom comprising a hopper provided with a supply of fresh filling carriers, a shuttle having an eye and a threading slot leading lnto the eye, a pivotally mounted transferrer aeting when rocked downwardly to transfer a fresh filling carrier from the hopper-into the shuttle, a rock arm mounted ad acent the transferrer and connected-thereto to be rocked thereby, a filling seizing device mounted to slide in said rock arm and acting when rocked downwardly to seize the filling on both sides of the shuttle threading slot and positively to force the filling into threading position, means yieldingly to project said device in said rock arm, and a lug carried by said seizing device and projecting into the path of the shuttle box, whereby when the seizing device is holding the filling in the shuttle it will partake of any beat-up movement of the shuttle.

13. An automatic filling'replenishing loom comprising a hopper provided wish a supply of fresh filling carriers, a,shutt le having an eye and a threading slot leading, into the eye, a stud extending transversely of the hopper, a transferrer mounted to rock on said stud and upon its downward movement to transfer a fresh filling carrier from the hopper into the shuttle, an arm secured to hopper into the shuttle, an arm secured to 20 and projecting from said stud, a rock arm and projecting from said stud, a rock arm pivotally mounted on said arm, operative pivotally mounted on said arm, operative means connecting the rock arm to the transmeans connecting the rock arm to the transferrer to cause the operation of the former ferrer to cause the operation of the former from the latter, a filling seizing device carfrom the latter, a filling seizing device car- 2 ried by .said rock arm and acting 'When ried by said rock arm and acting when rocked downwardly to seize the filling on rock'ed downwardly to seize the filling on both sides of the shuttle threading slot and both sides of the shuttle threading slot and positively to force the filling into threadpositively to force the filling into threading mg position. position, a bracket secured to and project- 30 14. An automatic filling replenishing loom ing from said stud, and a filling catching comprising a hopper provided with a supply 'lever pivoted .on said bracket and operatively of fresh filling carriers, a shuttle having an connected to the said rock arm to cause the eye and a threading slot leading into the operation of the lever from the rock arm. eye, a stud extending transversely of the In testimony whereof, I have signed my 35 hopper, a transferrer mounted to rock on name to this specification. said stud and upon its downward movement to transfer a fresh filling carrier from the HENRY YOUNGQUIST. 

